JP2018523889A - High voltage connection device for electrorheological devices - Google Patents

Abstract

  The invention relates to a high voltage connection device for an electrorheological device (3) comprising an insulating upper part (4), an insulating lower part (5) and a central metal contact pin (7). Comprising a high-voltage connector (1) provided, the lower part being securable in a grounded part of the electrorheological device (3), the upper part (4) having a ground connection element (10) And has an axial connection with the lower part (5). According to the present invention, a metal connection socket (2) is additionally fixed to the grounded portion of the electrorheological device, and the upper portion (4) is configured in a bowl shape and the lower portion The part (5) and the connection socket (2) are coaxially surrounded with the plug socket (2) inserted, and the upper part (4) is arranged radially with respect to the connection socket (2), As a ground connection element (10), the connection socket (2) has a spring member (6) arranged in a radial direction, and the metal contact pin (7) is composed of at least two parts. A lower contact pin part (8) is fixed in the lower part (5) and an upper contact pin part (9) is arranged in the upper part (4). When the upper member (4) is inserted into the connecting socket (2), the lower member (5) first attaches the spring member (6) to the connecting socket (2). Contacted and then axially arranged in the upper part (4) so that the upper contact pin part (9) can contact the lower contact pin part (8) And

Description

  The invention relates to a high-voltage connection device for an electrorheological device according to the preamble of claim 1.

  Electrorheological devices are often used as vibration dampers, valves, clutches, actuators or pumps. In this case, the electrorheological apparatus has an electrorheological fluid as a driving unit or a control unit, and the electrorheological fluid changes until the viscosity is solidified under the influence of an electric field. To control, high voltages up to about 5,000V are required. In this case, the electrorheological device usually has a hydraulic cylinder with a piston, the pressure medium chamber of which is filled with an electrorheological fluid and the piston movement is present in the electric field. Controlled by an electrorheological fluid. For this purpose, the electrorheological device has a high voltage connection, which is connected to an electrode arranged in the electrorheological device, by means of this electrode. An electric field is generated inside.

US Pat. No. 7,997,392 German Patent Publication No. 10201130488

  According to U.S. Pat. No. 7,997,392, an electrorheological device of this type is known, which device has a high-voltage connection as a screwable cable lead-in. An electrorheological device is a vibration attenuator for attenuating the stretching force of an automobile. For this purpose, the vibration attenuator has a pressure medium cylinder inside, which is divided into an entry chamber and an exit chamber by a piston, and the movement of the piston is of an electrorheological type with built-in. Open loop controlled by a valve. In this case, the electrorheological valve is formed by an outer circumferential wall tube of the electrorheological device and an electrode tube disposed on the inner side coaxial with the circumferential wall tube. The inner electrode tube is separated from each other by a narrow valve gap. The two pressure medium chambers are connected to each other by the narrow valve gap, and the flow rate of the electrorheological fluid can be controlled by the valve gap. Therefore, for open loop control, the high voltage connection is screwed to the outer peripheral wall tube as a fixed cable lead, and this cable lead is connected to the vibration attenuator via the high voltage cable. Connect each other to a high voltage source. In order to connect a high voltage cable, the outer peripheral wall tube is provided with a through hole whose predetermined surface is cut flat and reaches the electrode tube in the radial direction. In this case, the high-voltage connection is made of a metal, which is installed on the central cylindrical lower part introduced into the hole, and on the flat surface part of the outer peripheral wall, which is coaxial with the lower part. It consists of an upper part. In this case, the lower part is made of an insulated hard cylindrical plastic body, and a metal contact element is fixed to the center of the plastic body. It is attached in the contact hole in the peripheral wall tube, and is connected to the high voltage cable at the outer upper end. In order to seal the lower part, the plastic body is provided with two sealing slits provided on the outside, and two seals are inserted into these sealing slits. In order to fix the high-voltage connection, the upper part made of metal is formed in an annular shape and has an annular notch directed inwardly, and the lower part is pushed into this notch. The cable lead-in of the high-voltage cable, surrounded by a metal shield, is clearly electrically connected to the metal upper part, which consists of two spaced apart metal parts. Through the through hole, it is fixed to this outer peripheral wall tube in two threaded holes formed in the outer peripheral wall tube. In this case, the two threads simultaneously form a ground connection of the high-voltage connection to the grounded peripheral wall tube, and this ground connection is connected to the electrode as a counter electrode. These types of high voltage connections can be fixed to the peripheral tube at cost only by threaded holes and flat mounting surfaces and are very difficult to remove again for inspection purposes etc. is there.

  A high-voltage connection device that can be plugged in via a connector and connected to an electrorheological device is known from German Offenlegungsschrift 10 201301488. In this case, the connector of the high-voltage connecting device is inserted into a through hole provided in the outer peripheral wall tube of the electrorheological device, and thereby fixed to the outer peripheral wall tube. In this case, the high-voltage connector consists of an upper part made of a hard plastic material, a lower part made of a sealing soft plastic material, and a central contact pin for transmitting high voltages up to about 5000V. In this case, the contact pin is cast in the upper part and can be connected to a high voltage source in the upper part. Within the lower region of the upper part, the contact pin extends into the through hole and has a coil spring fitted into its lower tip, which coil spring passes through the hole and the fluid gap, A high voltage is transmitted to the electrode tube supported by the electrode tube disposed below the electrode tube. The upper part is configured in a cylindrical shape in its lower region and is provided with an edge part protruding in a cantilevered manner in its upper region. Two pole pieces are fixed. These two pole pieces are fitted into two contact pins welded to the outer peripheral surface, thereby forming a ground connection with the earthed peripheral wall tube of the electrorheological device. A soft and elastic lower part is arranged on the lower side in the axial direction of the upper part, and this lower part has a seal ring part in its upper region and a seal plug part in its lower region. The seal ring portion is firmly connected to the upper portion, and the seal plug portion is inserted into the through hole in the outer peripheral surface for an airtight seal of the fluid gap. In order to connect the high voltage to the electrorheological device, a high voltage connector with a lower part sealing plug part is inserted into the through-hole and at the same time two pole pieces are inserted into the two ground pins, thereby The high voltage is connected to the electrode and its counter electrode is connected to the earth of the electrorheological device.

  Since the high voltage connector must be attached to a vehicle part that is often difficult to access, such as a shock absorber, the high voltage connector can be easily pivoted about a central contact pin. Therefore, it is necessary to firmly fix the central contact pin so that the weakly clamped ground terminal does not come off or break.

  Therefore, the object of the present invention is to improve the high voltage connection for an electrorheological device of the type described at the beginning, so that a connection to the earth of the housing of the electrorheological device is always formed during high voltage connection. It is ensured that the voltage can be easily connected to the electrorheological device and can also be easily released again.

  This problem is solved by the present invention as set forth in claim 1. Variations and preferred embodiments of the invention are described in the dependent claims.

  In the present invention, the high-voltage connector can be securely connected to the electrorheological device in a mechanically satisfactory manner by the connection socket for inserting the high-voltage connector disposed in the electrorheological device. Nevertheless, it has the advantage that it can easily be connected to and removed from the electrorheological device. In this case, the connection socket is simple in form and can be mechanically and securely connected to the electrorheological device, so that this connection socket is preferably hermetically sealed for high fluid pressures up to 200 bar. Can be fixed to.

  The invention further provides for the connection between the electrode located in the electrorheological device and the externally applied high voltage by means of a two-part contact pin for high voltage transmission, first by means of the upper contact pin part. As a result, there is an advantage that contact with the high voltage in the high voltage connector or contact with the housing of the electrorheological device is not performed at the time of inserting the high voltage connector. This ensures in a suitable manner at the same time that a high voltage is temporally applied during the plug-in operation after the connection of the earth electrode and thus cannot be connected to a machine part that is not grounded.

  The special configuration of the present invention with a simple metal sleeve as a connection socket allows this metal sleeve to be easily attached to a simple through hole in an electrorheological device and then easily welded or soldered The process has the advantage that it can be tightly and mechanically coupled to the electrorheological device.

  Another special configuration of the high voltage connector with a separately pluggable lower part is that the lower part can be pre-assembled in the connection socket with the lower contact pin part not connected, It has the advantage that the sealing properties and the electrical contact with the electrodes can already be easily inspected in advance before the start of the operation. In this case, in particular, the construction of the lower part as an insulative insertion sleeve can be easily manufactured as a plastic injection-moulded part, which can easily be inserted together with the lower contact pin part. It has the advantage that it can be temporarily assembled. In this case, in a preferred manner, by simply inserting the plug-in sleeve into the connection socket, the plug-in sleeve is sealed against the valve gap underneath and secured in the connection socket. At the same time, this insulates the high voltage connector having its connectable high voltage from the housing of the electrorheological device.

  Another special configuration of the present invention with an upper part that can be connected separately in time at the end of the assembly operation is that the upper part is made up of its bowl-shaped plastic part and all the conductive parts of the high-voltage connector. It has the advantage of covering and insulating. The earthing element located in the upper part and the upper contact pin part shortened with respect to this earthing element, in the preferred form, connect the earthing electrode before the high voltage in time during the insertion operation This ensures that the use of high voltages is acceptable in automotive technology. Since the bowl-shaped upper part coaxially surrounds the lower part and the connection socket, it is possible to design a very compact high-voltage connector at least within the mounting height, so this high-voltage connector is It can be assembled directly to the electroviscous vibration damper in the wheel house. With such a compact configuration, at the same time, the upper part of the high-voltage connector can be used to control the electrorheological device safely and open-loop to high voltages in a compact configuration without an external circuit for supplying high voltage. Can be incorporated in a suitable manner into an open loop controllable high voltage transformer having an output voltage up to 5000V.

  Another special configuration of the present invention having two spring members as ground connection elements arranged radially in the upper part of the high-voltage connector thereby allows not only the high-voltage connector but also the high-voltage connector The high-voltage transformer connected to also has the advantage that it can be plugged and rotated electrically and mechanically connected to the electrorheological device. At the same time, the electrorheological device can be selected for connection in a suitable manner, since multiple rotational angular positions in the electrorheological device can be selected for connection. It can also be installed in existing fixed grooves without costly modifications.

  A more particular configuration of the present invention having a relatively long inner sleeve within the pot-shaped plastic portion allows the upper contact pin portion disposed within the inner sleeve to be inadvertent contact with high voltages. It has the advantage of being reliably protected. At the same time, the inner sleeve forms a supplementary insulation protection in the upper part for the guide and the adjacent earth connection element during the insertion operation in a suitable manner. This is because the inner sleeve prevents the insulation interval from shrinking laterally. In this case, the inner sleeve may be connected to a friction element or snap element that provides a secure fixation in the lower part of the high-voltage connector in a suitable manner.

  The present invention will be described in detail below with reference to embodiments shown in the drawings.

It is sectional drawing seen from the side of the high-voltage connection apparatus provided in the electrorheological vehicle damper. It is the perspective view sectional drawing which looked at the upper part of the high-voltage connection apparatus from the side. It is a top view of an upper part.

  FIG. 1 shows a cross-sectional view of a high-voltage connection device, which generally consists of a high-voltage connector 1, which is fixed in a connection socket 2, In this case, the connection socket 2 is fixed to an electroviscous vibration attenuator 3 as an electrorheological device.

  The cross-sectional view shows the plug-in state, in which the upper part 4 of the high-voltage connector 1 has not yet been completely inserted into the connection socket 2 and the lower part 5 in the axial direction. The electrorheological device has, as an outer housing part, a grounded metal outer tube 11 as a ground potential, and a valve gap 12 extends under the outer tube 11. The electrorheological fluid flowing through the gap 12 can be controlled in an open loop. A metal cylinder tube 13 is arranged in the intermediate region, which cylinder tube 13 defines the valve gap 12 in the radial direction and is simultaneously used as an electrode 13 for high voltage.

  In order to connect the ground connection of the high-voltage connector 1 to the vibration attenuator 3, a metal connection socket 2 is provided in the metal cylinder outer wall 11 of the damper 3, and this connection socket 2 is disposed in the through hole 14. And is hermetically welded or soldered to the peripheral wall of the outer tube 11 in a suitable manner. In this case, the connection socket 2 is made of a steel alloy in a suitable form, and an outer tube 11 is also produced from this steel alloy, in which case the connection socket 2 and the outer tube 11 are made of special steel, aluminum or other It may be made of a suitable metal. The connection socket 2 is configured as a specially molded metal sleeve, which is connected flush with the inner wall of the outer tube 11 in the lower region and is approximately 8 to vertically upward from the outer tube 11. In this case, the through hole 14 has a diameter of about 8 to 15 mm. The metal sleeve 2 has an internally stepped hole, which has a diameter of about 4-8 mm in the lower region 15 and a slightly larger of about 6-10 mm in the upper region 16. It has a diameter. The metal sleeve 2 has an enlarged cylindrical region 17 preferably 12 mm below the outer peripheral wall and a reduced cylindrical region 18 with a diameter of about 10 mm in the upper region.

  The upper cylindrical region 18 is further formed with a guide ring 19 in a suitable manner, which guide ring 19 is used for guiding the upper part 4 during the insertion operation. Further, the metal sleeve 2 has a conical centering slope 20 at the top end thereof, and along this centering slope 20, the spring member 6 of the upper portion 4 is moved to the upper cylindrical region 18 during the fitting operation. Slide.

  The lower portion 5 of the high voltage connector 1 is inserted into the inner hole of the metal sleeve 2 in a shape fastening manner, and this lower portion 5 is shown in its final insertion position. In this case, the lower part 5 of the high-voltage connector 1 is configured as an insertion sleeve 5, which is made of electrically insulated hard plastic and also extends downward from the sleeve-like connection socket 2. It also protrudes upward. Inside the metal sleeve 2, the outer shape of the insertion sleeve 5 is adapted to the inner shape of the connection socket 2. In this case, the insertion sleeve part projecting upward has a projecting annular part 21 which rests on the metal sleeve 2 inside the upper region and has an inclined annular surface. It ends at 20. In this case, the inclination of the annular surface acts so that the spring member 6 can easily slide along the connection socket 2.

  The insertion sleeve portion protruding downward from the connection socket 2 is configured to taper downward in diameter, and in a suitable manner, reaches a starting end portion of the sleeve-like connection socket 2 and has a plurality of vertical lengths not shown. In this case, fastening hooks 22 are arranged between the slits, and these fastening hooks 22 are fixed to the connection socket 2 in a snap manner with the insertion sleeve 5 facing outward. In the outer peripheral surface of the insertion sleeve 5, another annular groove is formed in the lower region of the connection socket 2, and a first O-ring 23 for sealing the damper chamber 41 is formed in the annular groove. It is inserted.

  An axial hole penetrating in the center of the insertion sleeve 5 is disposed, and a lower portion of the contact pin 7 as the lower contact pin portion 8 is inserted into the axial hole in a shape fastening manner. This lower contact pin portion 8 has a diameter of about 2 to 5 mm in a preferred manner. In the upper inner region 24 and the lower inner region 25 of the plug-in sleeve 5, diameter extensions of about 2 to 4 mm are provided, respectively, for the purpose of guiding the upper part 4 above. And below to seal the lower contact pin portion 8. A contact pin portion 8 below the two-part contact pin 7 is arranged in the axial hole. This lower contact pin portion 8 protrudes about 1-2 mm downward from the plug-in sleeve 5 and is supported on the electrode 13 by its rounded contact protrusion 26, thereby providing a high voltage And make electrical contact. A compression spring is incorporated in the contact protrusion 26, and the compression spring reliably connects the lower contact pin portion 8 to the electrode 13 by the pressing force. The inserted lower contact pin portion 8 further has an annular web 36 extending annularly and circumferentially in the lower diameter extension of the insertion sleeve 5. It is fitted in the inner region 25, forms an upward insertion restriction and is restricted upward by a second O-ring 27 for sealing.

  The lower contact pin portion 8 reaches the upper inner region 24 of the insertion sleeve 5, and at this time ends at the substantially upper surface of the insertion sleeve 5. Within the inner region 24 on the upper side of the plug-in sleeve 5, the lower contact pin part 8 has a connection part 28 configured as a spring sleeve.

  This connecting part 28 is represented by a hole on the inside and has four axial longitudinal slits on its outer wall, these longitudinal slits forming four spring tongues 29, The connecting portion 28 can be connected to the upper contact pin portion 9 while making positive contact with the spring tongue 29.

  This lower contact pin portion 8 is made of a conductive metal, preferably a non-oxidizing steel alloy, copper or brass.

  Above the connection socket 2 and above the lower part 5, the upper part 4 of the connection connector 1 is arranged. The upper portion 4 of the connector 1 is mainly composed of a bowl-shaped plastic portion 30 that opens downward, and a metal ground connection element 10 is cast into the plastic portion 30. The individual parts of the upper part 4 are described in detail in FIGS. The pot-shaped plastic part 30 is produced in a preferred form by a plastic injection molding process with a shape-stable plastic that provides good electrical insulation, and has a height of about 10-15 mm and a preferred form of about 15-20 mm. It has an outer diameter. The upper part 4 has an inner sleeve 31 in the middle, which is firmly connected to the cylindrical outer wall 33 of the upper part 4 by a bottom part 32. In this case, the inner sleeve 31 plunges into the inner chamber axially in a preferred manner by 5 to 7.5 mm, thereby forming a complete radial cover of the upper contact pin portion 9 and thus the upper contact. The pin portion 9 is protected against unintentional contact even when it is pulled out. In this case, the cylindrical outer wall 33 has a chamfered edge 34 inclined inward at the edge directed downward, and the chamfered edge 34 is connected to the connection socket 2 during the fitting operation. Used for slides guided along. Thereby, the upper part 4 is fixed to the connection socket 2 by the tightening force.

  Two ground connection elements 10 are arranged between the inner peripheral surface 35 and the bottom portion 32 of the outer wall 33 and are mechanically rigid by the inner peripheral surface 35 and the bottom portion 32 and the injection molding process. Is bound to. The two ground connection elements 10 are composed of two electrically independent ground connection portions, and these ground connection portions are arranged in a tangential direction with respect to the inner peripheral surface 35. In this case, each earth connection element 10 consists of two radially arranged spring members 6, a central contact part 39 and outwardly guided terminal contacts 37, all of which are mutually connected. Electrically connected. In this case, the two ground connection elements 10 are arranged 180 ° opposite to each other, and the four spring members 6 are preferably configured like leaf springs to form a rectangular or square sheet metal plate. In addition, it is directed tangential to the metal sleeve of the connection socket 2. A horizontal slit 43 is provided between a portion protruding above the individual spring member 6 and a cast portion. This slit 43 allows the injection molding material to be placed in a spring elastic region during the manufacturing process. Intrusion is prevented. Thereby, the spring elastic portion of the spring member 6 is freely movable and abuts against the connection sleeve 2 in a spring elastic manner. In order to obtain a reliable electrical contact, the two leaf springs 6 of the earth connection element 10 are loaded with a radial spring force, which causes the two leaf springs 6 to be connected in the radial direction. Electrically connected to the upper cylindrical area 18 of the socket 2. In this case, the electrical connection is not adversely affected by the rotational movement during the fitting operation or during operation. This is because the spring member 6 always abuts firmly against the metal sleeve of the connection socket 2 with its radial spring tension. However, the spring member 6 may alternatively be formed of a curved plate that contacts the outer peripheral surface of the metal sleeve 2 by a spring force or a U-shaped member formed in the axial direction.

  The spring member 6 has a length corresponding to almost half of the height of the bowl-shaped plastic portion 30 and extends in the axial direction. In this case, the length also depends on the axial dimensions of the metal sleeve 2 and the contact pin portions 8, 9. This is because the ground connection element 10 must be already connected to the ground connection element 10 prior to the connection of the high voltage in time during insertion and removal, and at the same time the high voltage is cut off by the withdrawal of the high voltage connector 1. Even so, it should be ensured that the earth connection is maintained.

  Therefore, the insertion state shown in FIG. 1 shows an insertion connection operation in which the high voltage connector 1 is electrically connected to the metal sleeve 2 just by the ground connection element 10 during the insertion operation. At the same time, the upper contact pin portion 9 just collides with the spring tongue 29 of the lower contact pin portion 8 so that a high voltage can be transmitted to the electrode 13. For this purpose, the upper contact pin portion 9 is made of a metal circular pin, and this circular pin has a shorter axial extent than the downwardly directed spring member 6 in the lower contact pin portion 8. Projecting downward in the axial direction toward the connecting portion 28. In this case, the length of the circular pin is adapted to the axial length of the connection socket 2. In this case, the upper contact pin part 9 may be fixed firmly as an automatic insertion part or in the inner sleeve 31 of the upper part 4. However, the upper contact pin portion 9 may be connected to a high voltage transformer portion connected to the upper portion 4. In a preferred form, the upper part 4 is connected to a high-voltage transformer part (not shown) for open-loop control of the electrorheological device and together with this high-voltage transformer part the lower part of the connection connector 1 It may be inserted into the part 5. Thereby, first the two ground connection elements 10 and then the high voltage are also connected to the electrorheological device by means of the upper contact pin part 9.

  Although only two ground connection elements 10 are shown, embodiments with one or three and more ground connection elements 10 may be provided.

  In this case, the assembly and connection of the high voltage connecting device is performed as follows.

  In order to assemble the connection socket 2, a through hole 14 of about 8-15 mm is first drilled in the outer tube 11 of the vibration damper. The connection socket 2 is then inserted into the hole at right angles to the outer tube 11 and is hermetically welded or soldered to the outer tube 11 in a suitable manner. However, the connection socket 2 may be conductively connected to the outer tube 11 by screw connection.

  As the next assembly stage, an insertion sleeve as the lower part 5 is prepared. At this time, the lower contact pin portion 8 is pushed into the insertion sleeve from below, and is fixed by the annular web 36 in the lower inner region 25 in the insertion sleeve. However, the lower contact pin portion 8 may be firmly and airtightly connected to the insertion sleeve 5. In this case, the lower contact pin portion 8 preferably protrudes 1 mm from the lower inner region 25 of the insertion sleeve 5 with its contact protrusion 26, whereas the lower contact pin portion 8 is generally closed by this insert sleeve 5 in the inner region 24 above the insert sleeve 5. Then, this temporarily assembled lower part 5 snaps into the inner edge of the connection socket 2 when the clamping hook 22 of the plug-in sleeve 5 protrudes from the connection socket 2 to connect the high voltage connector 1, Thus, the lower portion 5 is inserted into the connection socket 2 until it is fixed to the connection socket 2.

  Then, in order to connect the high-voltage connector 1 to its lower part 5, as a next assembly step, a bowl-shaped plastic part 30 of the upper part 4 is connected to the lower part 5 from above and to the lower part 5. 2 and thereby fixed to this connection socket 2. In this case, the chamfered edge 34 is used to guide the upper part 4 along the cylindrical area 17 below the connection socket 2 during the insertion operation. First, the third O-ring 42 is fitted over the connection socket 2 between the guide ring 19 of the metal sleeve and the lower cylindrical region 17. This third O-ring 42 is used to completely seal the high voltage connector 1 against external influences. In this case, the upper part 4 is fitted over the lower part 5 about 1-2 mm deeper than shown in FIG. 1, and then the annular part 21 of the insertion sleeve 5 is below the bottom part 32 of the pot-shaped plastic part 30. Abut on the side.

  During this insertion operation, first the four plate-shaped radial spring members 6 slide along the centering ramp 20 of the connection socket 2, thereby forming a ground connection to the electrorheological device configured as a vibration attenuator. The Since two independent and overlapping earth connection elements 10 are incorporated in the upper part 4, whether or not the earth connection has already been made conductive at this moment is confirmed via a test circuit (not shown). It is determined. For this purpose, each earth connection element 10 is loaded with a test voltage of the same magnitude. This test voltage signals a defect in the ground connection or cuts off the high voltage when a plurality of test current differences occur. This test circuit is in a preferred form and is incorporated in a high voltage part (not shown) arranged on the high voltage connector 1, which is connected to the high voltage connector 1 via an outer terminal contact 37. Can be connected to.

  After the ground connection element 10 in time, the electrical contact between the upper contact pin portion 9 and the lower contact pin portion 8 is connected to the upper contact pin portion 9 and the lower contact pin portion 9 during the insertion operation. In the pluggable connection portion 28 between the contact pin portion 8 and the contact pin portion 8. For this purpose, the upper contact pin portion 9 is configured in a preferred manner and slightly shorter in the axial direction than the spring member 6 in relation to the common horizontal line 40, so that the spring member 6 is temporally Prior to the high voltage connection, a ground connection is established in the connector 1. This ensures that the high voltage cannot be brought into contact with the vibration attenuator without a ground connection, both during insertion and removal.

  In any case, the upper contact pin portion 9 is configured as a separate component or connected to the upper portion 4 in the middle of the upper portion 4 in order to avoid human contact with high voltages. ing. When fastened to the upper part 4, the upper contact pin part 9 projects in a suitable manner upwardly from the upper part 4 by about 5 mm and has two opposite axial guide webs 38 on its upper outer wall part. These guide webs 38 can be inserted into a high voltage socket (not shown) of the high voltage portion and form an electrical connection with the high voltage. However, the upper part 4 of the high-voltage connector 1 may be firmly coupled to the high-voltage part, so that the upper part 4 and the high-voltage part together fit into the lower part 5 for connecting a high voltage. Is possible. The upper contact pin portion 9, which is arranged inside the upper portion 4 and has a shortened configuration with respect to the ground connection element 10, also prevents humans from coming into contact with the high voltage, and the high voltage ground. No connection is guaranteed to be blocked. According to a special configuration of the high-voltage connection device, in particular, the upper part 4 of the high-voltage connector 1 is incorporated in a high-voltage part with a high-voltage transformer that can be controlled open-loop, so that two A particularly compact construction of the part is obtained. At the same time, the use of a high voltage cable between the high voltage connector 1 and the high voltage transformer is avoided.

  In this embodiment, the ground connection element 10 of the upper portion 4 is connected to the outer peripheral surface of the lower portion 5, but the ground connection element 10 of the upper portion 4 is connected to the inner peripheral surface of the connection socket 2. May be. In this case, an edge portion whose diameter gradually decreases is provided on the inner peripheral surface of the centering slope 20 of the connection socket 2.

DESCRIPTION OF SYMBOLS 1 High voltage connector 2 Connection socket 3 Electrorheological apparatus 4 Upper part 5 Lower part 6 Spring member 7 Contact pin 8, 9 Contact pin part 10 Ground connection element 15 Lower area | region 16 Upper area | region 18 Cylindrical area | region 22 Fastening hook 24, 25 Inner area 26 Contact protrusion 28 Connection part 30 Plastic part 31 Inner sleeve 37 Terminal contact 39 Contact part

Claims (13)

A high voltage connection device for an electrorheological device (3) comprising a high voltage connector (1) with an insulating upper part (4) and an insulating lower part (5), and a central metal The lower part is fixable in a grounded part of the electrorheological device (3) and the upper part (4) is a ground connection element (10). In the form of an axial connection with the lower part (5),
A metal connection socket (2) is additionally fixed to the grounded part of the electrorheological device, and the upper part (4) is shaped like a bowl and the lower part (5) The connection socket (2) is also inserted coaxially, and the upper portion (4) is arranged in a radial direction with respect to the connection socket (2). 10) having a spring member (6) arranged radially in the connection socket (2), the metal contact pin (7) being composed of at least two parts, in this case The lower contact pin portion (8) is fixed in the lower portion (5), the upper contact pin portion (9) is disposed in the upper portion (4), and the spring member ( 6) to the connection socket (2) During the insertion operation of the upper part (4), the lower part (5) makes the spring member (6) contact the connection socket (2) first in time, and then the upper contact pin part (9). High voltage connection for an electrorheological device, characterized in that it is arranged axially in the upper part (4) so that can be in contact with the lower contact pin part (8) apparatus.   High-voltage connection device according to claim 1, characterized in that the upper part (4) has a plurality of ground connection elements (10).   The connection socket is configured as a metal sleeve (2), the metal sleeve (2) having a centering ramp that extends conically to the upper end and is cylindrical in the axial direction of the centering ramp. 3. High-voltage connection according to claim 1 or 2, characterized in that it has a region (18) and on which the spring member (6) of the upper part (4) rests on the cylindrical region (18). apparatus.   The metal sleeve (2) has an inwardly stepped diameter which is in its upper region (16) the outer diameter of the lower part (5) in this upper region. Having a reduced inner diameter corresponding to the reduced outer diameter of the lower part (5) in the lower region (15) in the lower region (15). The high-voltage connection device according to claim 3.   The lower part (5) of the high-voltage connector (1) is configured as a plug-in sleeve, which has two axially stepped areas on the outside, these 2 One region is adapted to the inner diameter of the metal sleeve (2) in a shape fastening manner, and the insertion sleeve is an annular portion protruding in a cantilever manner on the upper edge of the metal sleeve (2). (21) projecting from the metal sleeve (2) in the lower region, and having at least two tightening hooks (22) in the lower region, these tightening hooks ( 5. The device according to claim 1, wherein the second sleeve is snap-engageable with a lower end of the metal sleeve to be fixed to the metal sleeve. High voltage connection Apparatus.   The insertion sleeve (5) has a central hole penetrating in the axial direction on the inner side, and an inner area at the center of the central hole is set to an outer diameter of the contact pin (7) in the inner area of the center. 6. The inner diameter (24) and the lower inner diameter area (25) of the central hole, respectively, having a corresponding diameter and having an enlarged diameter. High voltage connection device.   The lower contact pin portion (8) provided for transmitting high voltage can be inserted into the penetrating central hole of the insertion sleeve, the upper part being closed by the insertion sleeve (5), The lower contact pin portion (8) is fixed so that the lower portion protrudes from the insertion sleeve (5) to reach the electrode (13), and the lower contact pin portion (8) is located on the upper inner region (24) of the insertion sleeve (5). ) Having a connection portion (28) for connecting to the upper contact pin portion (9), and a contact protrusion (26) on the outer side of the lower inner region (25) of the insertion sleeve (5). The contact protrusions (26) are electrically connected to the electrodes (13) located opposite to each other, wherein the contact protrusions (26) are electrically connected to each other. High voltage connection device   The upper part (4) has a pot-shaped plastic part (30) that opens downwardly with an inner sleeve (31) and a bottom part (32), in the plastic part (30). 8. The high-voltage connection device according to claim 1, wherein two metal ground connection elements (10) independent of each other are incorporated.   The ground connection element (10) has one central contact portion (39) with two spring members (6) protruding laterally, the two spring members (6) being mutually It has an angle directed to the outer peripheral surface of the insertion sleeve (2) in a tangential direction and a radial direction, and contacts the insertion sleeve (5) with a predetermined spring force in the inserted state. The high-voltage connecting device according to any one of claims 1 to 8.   The at least central contact portion (39) of the ground connection element (10) is connected to a terminal contact (37) arranged outside the pot-shaped plastic portion (30). Item 10. The high voltage connecting device according to Item 9.   11. The high-voltage connection device according to claim 10, characterized in that the two earth connection elements (10) are arranged in a radial direction facing each other.   The upper contact pin portion (9) is disposed in the inner sleeve (31) of the upper portion (4), and the lower end portion of the upper contact pin portion (9) is the bottom of the inner sleeve (31). 12. The device according to claim 8, wherein the upper contact pin portion (9) is shifted upward with respect to the lower end so as to be protected from contact by an external person. The high-voltage connecting device according to item.   The spring member (6) ends axially below the lower end of the upper contact pin portion (9), and in this case, the spring member (6) is time-dependent when the earth contact connection is inserted. 13. The device according to claim 1, wherein the device is arranged to be performed before the high voltage connection and to be disconnected after the high voltage connection in terms of time during the removal operation. High voltage connection device.

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